NSString*strSql =@"CREATE TABLE IF NOT EXISTS PERSONINFO (ID INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, address TEXT)"; [self execSql:strSql]; }- (IBAction)insertAction:(id)sender { NSLog(@"insert action"); NSString*sql1 =[NSString stringWithFormat:@"INSERT INTO 'PERS...
/// 创建表fileprivatefunccreateTable()->Bool{// 创建sqlite语句letsql="create table if not exists t_stu(name text, age integer, score real, id integer primary key autoincrement)"// 执行SQL语句// 参数一: 数据库// 参数二: 需要执行的SQL语句// 参数三: 回调结果, 执行完毕之后的回调函数, ...
ALTER TABLE "proxyip" RENAME TO sqlitemanager_temp_table_14678003456; CREATE TABLE "proxyip" ("column1" INTEGER PRIMARY KEY AUTOINCREMENT, "column23" TEXT); INSERT INTO "proxyip" ("column1","column23") SELECT "column1","column24" FROM sqlitemanager_temp_table_14678003456; DROP TABLE sqlit...
primary key: 保证记录行中字段值的唯一性。 autoincrement:字段值自动增长,与integer和primary key配合使用;阻止回收rowid。 unique: 记录行中字段的唯一性,不同数据库对null的处理不一致。 f1 integer unique, 为一个字段添加约束 ... unique( f1, f2 ), 为多个字段添加约束 foreign key: 确保表中字段值,在...
sqlite3 *db_;std::string sql = "create table if not exists sqlite(" "id INTEGER primary key AUTOINCREMENT," "value int64 not null);";char *err_msg = NULL;int ret = sqlite3_exec(db_, sql.c_str(), NULL, 0, &err_msg);if (ret != SQLITE_OK) { std::cout << "create table...
create table t_student (id integer primary key autoincrement, name text, age integer) ; 6.DML语句 1.插入数据(insert) 格式 insert into 表名 (字段1, 字段2, …) values (字段1的值, 字段2的值, …) ; 示例 insert into t_student (name, age) values (‘sz’, 10) ; ...
(ID INTEGER PRIMARY KEY AUTOINCREMENT,NUM TEXT,CLASSNAME TEXT,NAME TEXT)”; if (sqlite3_exec(dataBase, createSql, NULL, NULL, &errmsg)!=SQLITE_OK) { status.text = @”create table failed”; } } else{ status.text = @”create/open failled”; } }保存: sqlite3_stmt *statement; const...
[documentsDirectory stringByAppendingPathComponent:@"data.sqlite3"] UTF8String]);database= openDb();char*errorMsg;if (sqlite3_exec(database,"CREATE TABLE IF NOT EXISTS test (id INTEGER PRIMARY KEY AUTOINCREMENT, value INTEGER);",NULL,NULL, &errorMsg) != SQLITE_OK) {NSLog(@"Failed to ...
result = sqlite3_exec( db, “create table MyTable_1( ID integer primary key autoincrement, name nvarchar(32) )”, NULL, NULL, errmsg ); if(result != SQLITE_OK ) { printf( “创建表失败,错误码:%d,错误原因:%s/n”, result, errmsg ); ...
(id INTEGER PRIMARY KEY AUTOINCREMENT, date TEXT, money REAL)"; NSInteger status = sqlite3_prepare_v2(db, szSql, -1, &stmt, NULL); /* sqlite3_prepare_v2(sqlite3 *db, const char *szSql, int nByte, sqlite3_stmt **ppStmt, const char **pzTail) 这个函数将sql文本转换成一个准备...